[Echocardiographic evaluation of left ventricular function in ischemic heart disease (IHD)]
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Echocardiography (EchoC) indices can identify early left-ventricle insufficiency in ischemic heart disease (IHD) patients. Specific EchoC measurements effectively differentiate cardiac insufficiency, aiding diagnosis even with left-ventricle asynergy.
Area of Science:
- Cardiology
- Medical Imaging
- Diagnostic Medicine
Background:
- Ischemic heart disease (IHD) significantly impacts left-ventricle function.
- Accurate assessment of left-ventricle insufficiency is crucial for managing IHD.
- Existing clinical criteria may not always capture early-stage functional decline.
Purpose of the Study:
- To compare echocardiographic (EchoC) indices with clinical assessments of left-ventricle insufficiency in IHD patients.
- To evaluate the diagnostic value of EchoC in identifying early left-ventricle dysfunction.
- To determine which EchoC indices are most effective in differentiating cardiac insufficiency.
Main Methods:
- Echocardiographic (EchoC) indices of left-ventricle pump and contraction function were measured.
- Clinical criteria were used to stage left-ventricle insufficiency.
- Comparison involved 82 patients with IHD (old myocardial infarction, stable angina pectoris).
Main Results:
- Specific functional EchoC indices retained diagnostic value despite left-ventricle asynergy in IHD.
- EchoC effectively differentiated patients with and without cardiac insufficiency.
- Key indices for diagnosis included diastolic extent, ejection fraction (EF), fractional shortening (FS), and VCF.
Conclusions:
- Echocardiography (EchoC) is valuable for objectifying the determination of initial left-ventricle insufficiency in IHD.
- A specific complex of EchoC indices provides significant diagnostic value for assessing left-ventricle function in IHD patients.
- EchoC aids in differentiating cardiac insufficiency, even in the presence of significant left-ventricle asynergy.
Abstract:
A comparison was performed between the echocardiographic (EchoC) indices for the pump and contraction function of left ventricle and the stage of left-ventricle insufficiency, determined according to clinical criteria of 82 patients with ischemic heart disease (IHD)--old myocardial infarction and (or stable angina pectoris without left-ventricle infarction and for stable angina pectoris without left-ventricle aneurysm. With IHD, regardless of the considerable asynergy of left ventricle, some of the functional EchoC-indices were established to preserve their diagnostic values and definitely to differentiate the majority of the cases with, from those without, cardiac insufficiency, objectivizing the determination of initial left-ventricle insufficiency. The most significant diagnostic value of EchoC-assessment of left-ventricle function in IHD has the following complex of EchoC-indices: diastolic extent, left ventricle index resp, expulsion fraction (EF), shortening fraction (FS), average velocity of circumferential fibres (VCF), distance between point E of mitral echogram and interventricular septum (S-E distance), telediastolic interval A-C of mitral echogram and extent, index of left auricle, resp.